.topNav {
  width: 100%;
  height: 60px;
  line-height: 60px;
  border-bottom: 1px solid #ccc;
}
.topNav .w {
  height: 100%;
}
.topNav .w li {
  float: left;
  padding: 0 35px;
  border-right: 1px solid #ccc;
}
.topNav .w li:last-child {
  border-right: 0;
}
.topNav .w li:last-child a:first-child {
  background-color: red;
  color: #fff;
  padding: 5px;
  border-radius: 5px;
  margin-right: 10px;
}
.nav {
  width: 100%;
  height: 60px;
  line-height: 60px;
}
.nav li {
  float: left;
  padding: 0 20px;
}
.nav li img {
  width: 139px;
}
.banner {
  width: 100%;
}
.banner img {
  width: 100%;
}
.lists {
  width: 100%;
  padding: 10px 0;
  border-bottom: 1px solid #ccc;
}
.lists .w {
  display: flex;
  justify-content: space-between;
}
.lists dt {
  font-size: 18px;
  font-weight: 700;
  color: #666;
  height: 30px;
}
.lists dd {
  line-height: 30px;
}
.text {
  width: 100%;
  border-bottom: 1px solid #ccc;
  padding: 10px  0;
  line-height: 25px;
}
.text span {
  color: blue;
  cursor: help;
}
.footer {
  width: 100%;
  background: url('../images/box-style-bg.png');
}
.footer .topBox {
  width: 100%;
  height: 60px;
  line-height: 60px;
  border-bottom: 1px solid #ccc;
}
.footer .topBox li {
  float: left;
}
.footer .topBox li a {
  padding: 0 20px;
}
.footer .tips {
  position: relative;
  width: 100%;
  height: 55px;
  line-height: 55px;
  padding-left: 30px;
  background-color: #fff;
  box-sizing: border-box;
  margin-top: 30px;
}
.footer .tips::before {
  content: '';
  width: 0;
  height: 0;
  display: block;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-top: 10px solid transparent;
  border-bottom: 10px solid #fff;
  position: absolute;
  left: 30px;
  top: -20px;
}
.footer .cards {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
.footer .cards .item {
  width: 33%;
  height: 148px;
  background-color: #e61e25;
  margin-top: 10px;
  border-radius: 10px;
  padding: 10px;
  box-sizing: border-box;
  display: flex;
}
.footer .cards .item .leftItem {
  flex: 1;
  height: 100%;
  border-right: 1px dashed #fff;
  position: relative;
}
.footer .cards .item .leftItem::before {
  content: '';
  width: 15px;
  height: 15px;
  background-color: #f0f0f0;
  display: block;
  border-radius: 50%;
  position: absolute;
  right: -8px;
  top: -17px;
}
.footer .cards .item .leftItem::after {
  content: '';
  width: 15px;
  height: 15px;
  background-color: #f0f0f0;
  display: block;
  border-radius: 50%;
  position: absolute;
  right: -8px;
  bottom: -17px;
}
.footer .cards .item .rightItem {
  width: 110px;
  height: 100%;
  text-align: center;
  color: #fff;
}
.footer .cards .item .rightItem h2 {
  margin: 15px 0 10px;
  font-size: 30px;
}
.footer .cards .item .pub_color {
  color: #fff;
}
.footer .cards .item .spec {
  color: rgba(255, 255, 255, 0.3);
  font-size: 12px;
}
.footer .cards .item p:nth-child(2n) {
  margin: 6px 0;
}
.footer .cards::after {
  content: '';
  width: 33%;
  display: block;
}
@media only screen and (min-width: 768px) and (max-width: 1024px) {
  .topNav .w {
    width: 768px;
  }
  .topNav .w li:first-child {
    display: none;
  }
  .nav .w {
    width: 768px;
  }
  .nav li {
    padding: 0 16px;
  }
  .nav li:last-child {
    display: none;
  }
  .lists .w {
    width: 768px;
    justify-content: space-around;
  }
  .text .w {
    width: 768px;
  }
  .text p {
    padding: 0 15px;
    font-size: 14px;
  }
  .footer .w {
    width: 768px;
  }
  .footer .cards .item {
    width: 49%;
  }
}
@media only screen and (min-width: 320px) and (max-width: 767px) {
  .topNav {
    display: none;
  }
  .nav {
    display: none;
  }
  .lists {
    display: none;
  }
  .text .w {
    width: 100%;
  }
  .text p {
    padding: 0 15px;
    font-size: 14px;
    line-height: 20px;
  }
  .footer .w {
    width: 100%;
  }
  .footer .topBox {
    overflow: auto;
  }
  .footer .topBox ul {
    width: 768px;
  }
  .footer .cards .item {
    width: 100%;
  }
}
